<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <!-- import CSS -->
    <link rel="stylesheet" href="https://cdn.staticfile.org/element-ui/2.15.9/theme-chalk/index.css">
</head>
<body>
<div id="app">
<h1>发布微博页面</h1>
    <el-upload
            name="pic"
            action="/upload"
            list-type="picture-card"
            :on-success="handleSuccess"
            :on-preview="handlePictureCardPreview"
            :on-remove="handleRemove">
        <i class="el-icon-plus"></i>
    </el-upload>
    <el-dialog :visible.sync="dialogVisible">
        <img width="100%" :src="dialogImageUrl" alt="">
    </el-dialog>
    <input type="text" v-model="weibo.content" placeholder="说点儿什么...">
    <input type="button" value="发布微博" @click="send()">
</div>
</body>
<script src="https://cdn.bootcdn.net/ajax/libs/axios/0.21.1/axios.min.js"></script>
<!-- import Vue before Element -->
<script src="https://cdn.staticfile.org/vue/2.6.14/vue.min.js"></script>
<!-- import JavaScript -->
<script src="https://cdn.staticfile.org/element-ui/2.15.9/index.min.js"></script>
<script>
    let v = new Vue({
        el: '#app',
        data: function () {
            return {
                dialogImageUrl: '',
                dialogVisible: false,
                weibo:{content:"",urls:""},
                arr:[]
            }
        },
        methods: {
            handleSuccess(response,file,fileList){
                //把上传成功的图片路径装进arr数组
                //response=file.response
                v.arr.push(response);
            },
            send(){
                 //数组的toString()方法可以将数组中的多个字符串合并成一个字符串用,合并
                    v.weibo.urls = v.arr.toString();
                   axios.post("/weibo/insert",v.weibo).then(function (response) {
                       if (response.data==1){
                           alert("发布完成!");
                           location.href="/";//回到首页
                       }else{
                           alert("请先登录!");
                           location.href = "/login.html";
                       }
                   })
            },
            handleRemove(file, fileList) {
                //从arr数组中删除图片路径
                //先得到删除图片路径的位置
               let index = v.arr.indexOf(file.response);
               //删除数组中这个位置的1个内容
                v.arr.splice(index,1);

                console.log(file, fileList);
                //发出删除的请求  file.response得到的是文件的路径
                console.log(file.response);
                axios.get("/remove?url="+file.response).then(function () {
                    console.log("删除成功!");
                })
            },
            handlePictureCardPreview(file) {
                this.dialogImageUrl = file.url;
                this.dialogVisible = true;
            }
        }
    })
</script>
</html>